Polarization-Dependent Multidirectional Coupler Based on Y-branch Silicon Waveguide Integrated with Single Optimized Catenary Antenna
Polarization-Dependent Multidirectional Coupler Based on Y-branch Silicon Waveguide Integrated with Single Optimized Catenary Antenna
复制标题
基于Y分支硅波导与单优化悬链线天线集成的偏振相关多向耦合器
DOI：
10.1088/1361-6463/ac4d27
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通讯作者：
Jianpin
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作者：
Cong Chen;Panpan Chen;Jiajia Mi;Xiaohu Chen;Jianpin
随着信息技术的发展和创新，需要处理的数据量迅速增加。然而，传统的单向传输设备只适合串行操作，处理数据速度慢，在信息处理领域受到严重限制。本研究利用时域有限差分法设计并模拟一多向耦合器，以提高数据计算速度。该耦合器由一个Y分支硅波导与一个单一的金属悬链线天线放置在二氧化硅基板集成。通过控制照明光的偏振，耦合器的光流可以耦合到多个方向。然后，采用优化算法对悬链线宽度进行优化，提高了多方向耦合器的光学性能。此外，入射光的偏振状态可以通过检测从耦合器的端口输出的功率来识别。因此，多方向耦合器在光子芯片、量子通信、片上信息传输和处理等方面具有广阔的应用前景。
The amount of data that needs to be processed is increasing rapidly with the development and innovation of information technology. Nevertheless, the traditional unidirectional transmission device, which is only suitable for serial operation, is slow in processing data and is severely restricted in the field of information processing. In this study, a multidirectional coupler is designed and simulated through the finite-difference time-domain method to improve data computing speed. The coupler consists of a Y-branch silicon waveguide integrated with a single metallic catenary antenna placed on a silicon dioxide substrate. The light flow of the coupler can be coupled to multiple directions by controlling the polarization of the illuminated light. Then, the optical performance of the multidirectional coupler is enhanced via adopting the optimization algorithm to optimize the widths of the catenary. Furthermore, the polarization state of the incident light can be identified by detecting the power output from the ports of the coupler. Therefore, the multidirectional coupler might show enormous application prospects in photonic chips, quantum communication, on-chip information transmission, and processing.